700rpm
Well-known member
I put my new Champion 3X plugs in my coupe today, and what a difference! I've been dinking around with carb and points and timing trying to get the car to idle smoothly. That didn't work, so I decided to try the plugs. Wow! Smooth idle, even when cold, very smooth acceleration and slightly increased power.
I had been running the Autolight plugs you can get from any vendor, but no more. These plugs are worth the price! (About $20 each at O'Reilly's).
I had been running the Autolight plugs you can get from any vendor, but no more. These plugs are worth the price! (About $20 each at O'Reilly's).